While it is true that many artificial Christmas trees are made from polyvinyl chloride (PVC), which can contain toxic chemicals, the level of toxicity is generally considered to be low and not a significant concern. However, it's important to note that not all artificial trees are made with the same materials, so some may contain more toxic chemicals than others. If you are concerned about the potential toxicity of your artificial tree, it's always a good idea to research the specific brand and materials used to make it.